Figure 1.

The acute rejection of different levels in transplanted lung tissue. A: grade A1 rejection; B: grade A2 rejection; C: grade A3 rejection; D: grade A4 rejection. (A-C) H&E, x200; (D) H&E, x400.

Cheng et al. Diagnostic Pathology 2013 8:168   doi:10.1186/1746-1596-8-168
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